System and method for sensing a wide range of water vapor...

Details System and method for sensing a wide range of water vapor... System and method for sensing a wide range of water vapor...

2006-02-16

2009-02-10

Williams, Hezron (Department: 2856)

Measuring and testing

With fluid pressure

Leakage

Reexamination Certificate

active

07487664

ABSTRACT:
A dual sensor system for measuring the presence of a wide range of water vapor concentration in an atmosphere. A first sensor for measuring higher levels of water vapor concentration and a second sensor for measuring lower levels of water vapor concentration. A pair of three way valves operable to provide two flow paths for the atmosphere, a first path including both the first and second sensors, and a second path including only the second sensor. An electronic control arrangement for indicating the water vapor levels in the atmosphere and for providing an electronic signal to actuate the pair of three way valves.

REFERENCES:
patent: 5876664 (1999-03-01), Childers et al.
patent: 6910341 (2005-06-01), Srichai et al.

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